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Updated: Jul 27, 2025

Preparation of Multifunctional Silk-Based Microcapsules Loaded with DNA Plasmids Encoding RNA Aptamers and Riboswitches

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多响应分子封装和释放基于与结合的宏循环.

Jinyang Wu¹, Xuan Sun¹, Xianghui Li¹

¹College of Chemistry, Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China.

Molecules (Basel, Switzerland)

|June 10, 2023

概括

研究人员开发了一种新型的多反应性宿主-客人系统,使用阿佐-宏循环和双盐. 该系统允许控制捕获和释放由光,pH和阳离子触发的客体,从而推进超分子化学应用.

关键词:

主人客人的化学反应.具有键的宏循环.多响应式多响应式

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科学领域:

超分子化学超分子化学
材料科学材料科学材料科学

背景情况:

响应刺激的宿主-客人系统对于催化和药物输送等先进应用至关重要.
此前已经开发了一种新型的与结合的宏循环 (1),通过EZ光异构化进行光控制尺寸调制.

研究的目的:

为了呈现一个多响应的宿主-客人系统 (azo-macrocycle 1 和 4,4'-bipyridinium 盐 G1).
为了证明pH,光和阴离子控制的客体封装和释放.
探索这个系统在复杂的超分子应用中的潜力.

主要方法:

合成和特征的阿佐-宏环宿主 (1) 和双盐客人 (G1).
使用光 (光异构),pH (酸/) 和离子竞争来研究宿主-客复合体的形成和解离.
用光谱和结构分析来确认复杂性和响应性.

主要成果:

亚-宏环 (1) 与二甲/二甲盐 (例如G1) 形成稳定的复合体.
光照射诱导受控的客人捕获和释放.
使用酸和来实现G1的可逆结合和释放.
阴离子竞争成功地解离了复合物 (1a•G1).

结论:

一个多功能多响应的主机-客户系统已经成功开发出来.
该系统通过外部刺激来精确控制分子封装.
这些发现为设计针对特定应用的高级超分子系统提供了宝贵的见解.